Keith, David V., author
Taylor & Francis Inc, 2001
Buku Teks
Keith, David V., author
Sheridan Book, 2001
Buku Teks
Tec, Nechama, author
Oxford University Press, 2009
Buku Teks
Noridha Weningsari, author
Fakultas Psikologi Universitas Indonesia, 2014
UI - Tesis Membership
Heidi Gerard Kaduson, Charles E. Schaefer, editor
Guilford Press, 2000
Buku Teks